There are programs with shorter rest times between sets, e.g. German Volume Training (60 to 90 secs). And you can do dumbell bench press without a spotter. But

There are programs with shorter rest times between sets, e.g. German Volume Training (60 to 90 secs). And you can do dumbell bench press without a spotter. But I totally agree, more "practical" excercise like bouldering is much more fun.